Using the percentage concept, it is found that the efficiency of this power plant is of 74%.
The percentage of an amount a over a total amount b is given by a multiplied by 100% and divided by b, that is:
[tex]P = \frac{a}{b} \times 100\%[/tex]
In this problem:
Then, the efficiency is given by:
[tex]P = \frac{17380}{23500} \times 100\% = 74\%[/tex]
More can be learned about the percentage concept at https://brainly.com/question/10491646